1 files changed, 4 insertions, 2 deletions
diff --git a/emcc b/emcc
index 346b420a..d015d85e 100755
--- a/emcc
+++ b/emcc
@@ -225,7 +225,7 @@ be generated:
   <name>.js                JavaScript (default)
   <name>.html              HTML with embedded JavaScript
   <name>.bc                LLVM bitcode
-  <name>.o                 LLVM bitcode
+  <name>.o                 LLVM bitcode (same as .bc)
 
 The -c option (which tells gcc not to run the linker) will
 cause LLVM bitcode to be generated, as %s only generates
@@ -780,7 +780,9 @@ try:
     if DEBUG: save_intermediate('eliminator')
 
     # js optimizer pre-pass
-    js_optimizer_queue += ['simplifyExpressionsPre', 'optimizeShiftsAggressive']
+    js_optimizer_queue += ['simplifyExpressionsPre']
+    if shared.Settings.RELOOP:
+      js_optimizer_queue += ['optimizeShiftsAggressive'] # aggressive shifts optimization requires loops, it breaks on switches
     flush_js_optimizer_queue()
     final = shared.Building.eliminator(final) # aggressive shifts optimization introduces some new variables, remove ones that we can
     if DEBUG: save_intermediate('eliminator')